问题描述
我开始使用JFreeChart
进行绘图.我希望我的图表看起来像下面的图片:
I started using JFreeChart
to do some plotting.I would like my chart to look like the image below:
我通过使用BoxAndWhisker
图表非常接近:
I came very close by using BoxAndWhisker
chart:
但是,有些事情我仍然想更改.有没有办法删除盒子,所以我只有中间线?以及如何在标签上添加标签?同样由于某种原因,y轴的最后一个数字(图像的右下角)也被截断了.
However, there are certain things that I would still like to change. Is there a way to remove the boxes so I only have the middle line? And how can I add labels to the bars? Also for some reason the last number of the y axis (bottom right in the image) is cut off.
这是我的示例代码:
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.GeneralPath;
import java.awt.geom.Line2D;
import java.awt.geom.Rectangle2D;
import java.text.DecimalFormat;
import javax.swing.Icon;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.AxisLocation;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.CategoryItemRendererState;
import org.jfree.chart.renderer.category.MinMaxCategoryRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RectangleInsets;
import org.jfree.ui.RefineryUtilities;
public class MinMaxCategoryPlotTest extends ApplicationFrame {
public MinMaxCategoryPlotTest(String title) {
super(title);
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(1604, "1", "PESAII");
dataset.addValue(1704, "2", "PESAII");
dataset.addValue(1804, "3", "PESAII");
dataset.addValue(1512, "1", "NSGAII");
dataset.addValue(1612, "2", "NSGAII");
dataset.addValue(1712, "3", "NSGAII");
dataset.addValue(1436, "1", "SPEA2");
dataset.addValue(1536, "2", "SPEA2");
dataset.addValue(1636, "3", "SPEA2");
dataset.addValue(1363, "1", "IBEA");
dataset.addValue(1463, "2", "IBEA");
dataset.addValue(1563, "3", "IBEA");
dataset.addValue(1186, "1", "MOEA/D");
dataset.addValue(1286, "2", "MOEA/D");
dataset.addValue(1386, "3", "MOEA/D");
final CategoryAxis xAxis = new CategoryAxis("");
xAxis.setTickLabelsVisible(false);
final NumberAxis yAxis = new NumberAxis("Rating");
yAxis.setRange(1100, 2000);
DecimalFormat df = new DecimalFormat("0"); // Override the decimal format to get integer numbers on the axis (1.800 -> 1800)
yAxis.setNumberFormatOverride(df);
yAxis.setAutoRangeIncludesZero(false);
MyMinMaxCategoryRenderer renderer = new MyMinMaxCategoryRenderer();
renderer.setSeriesPaint(0, new Color(0, 0, 0, 0)); // invisible
renderer.setSeriesPaint(1, Color.black);
renderer.setSeriesPaint(2, new Color(0, 0, 0, 0)); // invisible
renderer.setSeriesShape(1, new Line2D.Double(0, -6, 0, 6)); //not working
renderer.setSeriesVisible(0, false); // not working
renderer.setMinIcon(getIcon(new Line2D.Double(0, -6, 0, 6), true, true));
renderer.setMaxIcon(getIcon(new Line2D.Double(0, -6, 0, 6), true, true));
renderer.setObjectIcon(getIcon(new Line2D.Double(0, -4, 0, 4), true, true));
final CategoryPlot plot = new CategoryPlot(dataset, xAxis, yAxis, renderer);
plot.setOrientation(PlotOrientation.HORIZONTAL);
plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT);
final JFreeChart chart = new JFreeChart(
title,
new Font("SansSerif", Font.BOLD, 16),
plot,
false
);
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(1000, 400));
setContentPane(chartPanel);
chart.setBackgroundPaint(Color.white);
chart.setPadding(new RectangleInsets(10, 10, 10, 10)); // Fix: tick label cut off
}
private Icon getIcon(Shape shape, final boolean fill,
final boolean outline) {
final int width = shape.getBounds().width;
final int height = shape.getBounds().height;
final GeneralPath path = new GeneralPath(shape);
return new Icon() {
public void paintIcon(Component c, Graphics g, int x, int y) {
Graphics2D g2 = (Graphics2D) g;
path.transform(AffineTransform.getTranslateInstance(x, y));
if (fill) {
g2.fill(path);
}
if (outline) {
g2.draw(path);
}
path.transform(AffineTransform.getTranslateInstance(-x, -y));
}
public int getIconWidth() {
return width;
}
public int getIconHeight() {
return height;
}
};
}
public static void main(String[] args) {
MinMaxCategoryPlotTest demo = new MinMaxCategoryPlotTest("Rating Interval");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
public class MyMinMaxCategoryRenderer extends MinMaxCategoryRenderer {
@Override
public void drawItem(Graphics2D g2, CategoryItemRendererState state,
Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis,
ValueAxis rangeAxis, CategoryDataset dataset, int row, int column,
int pass) {
super.drawItem(g2, state, dataArea, plot, domainAxis, rangeAxis, dataset, row, column, pass);
//Draw label
if (dataset.getRowCount() - 1 == row) { //last row
Number value = dataset.getValue(row, column);
double x1 = domainAxis.getCategoryMiddle(column, getColumnCount(),
dataArea, plot.getDomainAxisEdge());
double y1 = rangeAxis.valueToJava2D(value.doubleValue(), dataArea,
plot.getRangeAxisEdge());
g2.setFont(new Font("SansSerif", Font.BOLD, 14));
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
String name = dataset.getColumnKey(column).toString();
int width = g2.getFontMetrics().stringWidth(name);
g2.drawString(name, (int) y1 - width, (int) x1 - 12);
}
}
}
}
评分/置信区间的最终完整结果:
Final complete result for Rating / Confidence Intervals:
推荐答案
在此处 ,请使用 MinMaxCategoryRenderer
PlotOrientation.HORIZONTAL和自定义AxisLocation
的a>.
CategoryPlot plot = (CategoryPlot) chart.getPlot();
plot.setOrientation(PlotOrientation.HORIZONTAL);
MinMaxCategoryRenderer renderer = new MinMaxCategoryRenderer();
plot.setRenderer(renderer);
plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT);
You can change the Icon
used like this, or you can create your own icons based on this approach.
renderer.setObjectIcon(renderer.getMinIcon());
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